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1.For a child of average height, this is equivalent to a gain in weight of nearly one pound [0.45kg] every five months.
equivalent to等于，折合
Eight kilometres is roughly equivalent to five miles.
八公里约等于五英里。
2.It’s not maternal employment per se that's the issue.
per se本身，本质上
The drug is not harmful per se, but is dangerous when taken with alcohol.
这种药本身无害，但与酒同服就危险了。
